Orientation-controlled, low-temperature plasma growth and applications of h-BN nanosheets

Ivan Sergeevich Merenkov, Mikhail Sergeevich Myshenkov, Yuri Mikhailovich Zhukov, Yohei Sato, Tatyana Sergeevna Frolova, Denis Vasilevich Danilov, Igor Alekseevich Kasatkin, Oleg Sergeevich Medvedev, Roman Vladimirovich Pushkarev, Olga Ivanovna Sinitsyna, Masami Terauchi, Irina Alekseevna Zvereva, Marina Leonidovna Kosinova, Ken Ostrikov

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Dimensionality and orientation of hexagonal boron nitride (h-BN) nanosheets are promising to create and control their unique properties for diverse applications. However, low-temperature deposition of vertically oriented h-BN nanosheets is a significant challenge. Here we report on the low-temperature plasma synthesis of maze-like h-BN nanowalls (BNNWs) from a mixture of triethylamine borane (TEAB) and ammonia at temperatures as low as 400 °C. The maze-like BNNWs contained vertically aligned stacks of h-BN nanosheets. Wavy h-BN nanowalls with randomly oriented nanocrystalline structure are also fabricated. Simple and effective control of morphological type of BNNWs by the deposition temperature is demonstrated. Despite the lower synthesis temperature, thermal stability and oxidation resistivity of the maze-like BNNWs are higher than for the wavy nanowalls. The structure and oxidation of the nanowalls was found to be the critical factor for their thermal stability and controlled luminescence properties. Cytotoxic study demonstrated significant antibacterial effect of both maze-like and wavy h-BN nanowalls against E. coli. The reported results reveal a significant potential of h-BN nanowalls for a broad range of applications from electronics to biomedicine. [Figure not available: see fulltext.].

Original languageEnglish
Pages (from-to)91-99
Number of pages9
JournalNano Research
Volume12
Issue number1
DOIs
Publication statusPublished - 2019 Jan 1

Keywords

  • boron nitride nanosheets
  • chemical vapor deposition
  • cytotoxicity
  • light emission
  • nanowalls
  • thermal stability

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering

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    Merenkov, I. S., Myshenkov, M. S., Zhukov, Y. M., Sato, Y., Frolova, T. S., Danilov, D. V., Kasatkin, I. A., Medvedev, O. S., Pushkarev, R. V., Sinitsyna, O. I., Terauchi, M., Zvereva, I. A., Kosinova, M. L., & Ostrikov, K. (2019). Orientation-controlled, low-temperature plasma growth and applications of h-BN nanosheets. Nano Research, 12(1), 91-99. https://doi.org/10.1007/s12274-018-2185-7